Ingredients

Directions

Preheat oven to 350 degrees.

In a large pan, boil sliced zucchini until tender 4-8 minutes; drain.

Spray a 9x13-inch casserole dish with nonstick spray.Cover the bottom of the casserole dish with sliced tomatoes. Layer zucchini and onions. Season with salt and pepper. Sprinkle with parmesan cheese.Repeat layers.Top off the casserole with lots of parmesan cheese.Bake uncovered for 45 minutes.